JTGT is a Java library for loading, manipulating, and writing Praat TextGrid files, and similar annotation files, such as XWaves lab. It's inspired by the TextGridTools module for Python.
Release versions are hosted on Bintray and indexed in JCenter. Snapshot builds are hosted on OJO.
String tgStr = new File("path/to/my.TextGrid").getText();
TextGrid tg = new TextGridSerializer().fromString(tgStr);for (Annotation annot : tg.getTiers().get(0).getAnnotations()) {
System.out.println(annot.getText());
}